Outward-pumping type vacuum packaging equipment

Abstract

The utility model discloses external pumping type vacuum packaging equipment. The first position adjusting device and the shaping device are arranged on the upper template; the sealing device is arranged on the first position adjusting device; the heat sealing device is arranged on the first position adjusting device and is arranged above the sealing device; the second position adjusting device is arranged on the upper template; the third position adjusting device is connected with the upper die plate, and the two sealing devices are oppositely arranged in the X-axis direction. Each sealing device comprises a functional plate mounted on the first position adjusting frame, a plurality of sealing position adjusting air cylinders mounted on the functional plate, a sealing connecting block connected with the sealing position adjusting air cylinders at the same time, a fixing seat mounted on the sealing connecting block, and a sealing strip mounted on the fixing seat; and an air tap is arranged on the shaping device. The vacuum pumping device is good in vacuum pumping effect, effectively simplifies the structure of equipment, reduces the production cost and the maintenance cost of the equipment, improves economic benefits, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to a packaging device, in particular to an external vacuum packaging device. Background Art

[0002] With the rapid development of modern machinery, machines have replaced manual labor in many fields. Rice packaging machine is one of them. Rice packaging machine packs rice according to set weight specifications (such as 5KG, 10KG, etc.), realizes production automation, reduces the labor intensity of workers and reduces production costs.

[0003] Rice packaging machines are usually equipped with a vacuum module, which is used to evacuate the packaging bag during packaging, effectively extending the shelf life of the food in the packaging bag. The vacuum module of the rice packaging machine includes an upper mold and a lower mold. Through the cooperation between the upper mold and the lower mold, on the one hand, the shape of the packaging bag can be shaped, and on the other hand, a closed inner cavity is formed, so that the vacuum equipment can evacuate the packaging bag.

[0004] However, for this type of vacuum module, extremely high requirements are placed on the sealing of the upper and lower molds. Moreover, other equipment (such as heat sealing equipment, etc.) is installed inside the upper and lower molds, and holes need to be punched in the upper or lower mold for the control cables of the heat sealing equipment or other equipment to pass through. This further increases the sealing requirements and increases the difficulty of installation and design of the overall equipment, causing trouble for manufacturers. Utility Model Content

[0005] Based on this, it is necessary to provide an external vacuum packaging device to address the shortcomings of the existing technology.

[0006] An external vacuum packaging device comprises an upper template, a first positioning device and a shaping device mounted on the upper template, a sealing device mounted on the first positioning device, a heat sealing device mounted on the first positioning device and above the sealing device, a second positioning device mounted on the upper template, a suction nozzle mounted on the second positioning device, and a third positioning device connected to the upper template, wherein the suction nozzle is connected to an external vacuum device; the sealing devices are provided in two sets, and the two sets of sealing devices are arranged opposite each other in the X-axis direction. Each sealing device comprises a functional board mounted on a first positioning frame, a plurality of sealing and positioning cylinders mounted on the functional board, a sealing connection block connected to the sealing and positioning cylinders, a fixing seat mounted on the sealing connection block, and a sealing strip mounted on the fixing seat; the heat sealing device comprises a first hot pressing module and a second hot pressing module, and the first and second hot pressing modules are arranged opposite each other in the X-axis direction; the shaping devices are also provided in two sets, and the two sets of shaping devices are mounted on the upper template and opposite each other in the Y-axis direction. An air nozzle is provided on the shaping device and is connected to an external air pump.

[0007] In one embodiment, the first positioning device includes a plurality of guide rails, two groups of sliders sliding on the guide rails, two first positioning frames respectively mounted on the two groups of sliders, and two first driving cylinders mounted on the upper template and connected to the two first positioning frames respectively. The guide rails are installed along the X-axis direction, the two first positioning frames are arranged opposite to each other in the X-axis direction, the two first driving cylinders drive the two first positioning frames to move closer to or away from each other in the X-axis direction, and two groups of sealing devices are installed on the two first positioning frames of the two groups of first positioning devices.

[0008] In one embodiment, a T-shaped groove that is wide inside and narrow outside is provided on the side of the fixing seat away from the connecting block, and the sealing strip is installed on the T-shaped groove and extends from the T-shaped groove.

[0009] In one embodiment, the sealing strip is made of silicone and an escape opening is provided on the inner side of the functional panel.

[0010] In one embodiment, the first hot pressing module includes a first mounting plate installed on a first positioning frame, a first hot pressing cylinder installed on the first mounting plate, a rubber strip seat connected to the first hot pressing cylinder, and a rubber strip installed on the rubber strip seat; the second hot pressing module includes a second mounting plate installed on another first positioning frame, a second hot pressing cylinder installed on the second mounting plate, and a heat sealing knife connected to the second hot pressing cylinder.

[0011] In one embodiment, the second positioning device includes a second positioning frame, a nozzle positioning cylinder and a guide sleeve installed on the second positioning frame, an adjusting plate connected to the nozzle positioning cylinder, and a guide rod connected to the positioning plate and passing through the guide sleeve. The nozzle is installed on the positioning plate, and the guide rod guides the positioning plate in the Z-axis direction. The nozzle positioning cylinder drives the positioning plate and the nozzle installed on the positioning plate to adjust in the Z-axis direction.

[0012] In one embodiment, the suction nozzle is arranged in sections, including a fixed section and a matching section, wherein the matching section is located at the bottom of the suction nozzle and is flat.

[0013] In one embodiment, a third positioning device is further included, wherein the third positioning device is connected to the upper template and drives the upper template to adjust its position in the Z-axis direction.

[0014] The beneficial effects of the external vacuum packaging equipment of the present invention are as follows: by providing a shaping device, a heat-sealing device mounted on a sealing device of a first positioning device, a second positioning device, and a suction nozzle mounted on the second positioning device, during vacuuming, the second positioning device drives the suction nozzle to extend directly into the packaging bag, the shaping device performs preliminary shaping on the packaging bag, the sealing device presses the bag opening, and after vacuuming is completed, the suction nozzle is withdrawn from the packaging bag, and the heat-sealing device heat-seals the bag opening. The utility model has a good vacuuming effect, effectively simplifies the structure of the equipment, reduces the production and maintenance costs of the equipment, improves economic benefits, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 、 Figure 2 Schematic diagram of the structure of the external vacuum packaging equipment of the utility model at different angles;

[0016] Figure 3 、 Figure 4 Schematic diagrams of the structure of the heat sealing device and the sealing device of the present invention installed on the first positioning device at different angles;

[0017] Figure 5 This is a schematic diagram of the structure in which the suction nozzle of the present invention is installed in the second positioning device;

[0018] Figure 6 This is a structural diagram of the packaging bag being placed on the lower mold;

[0019] Figure 7 Schematic diagram of the packaging bag structure. DETAILED DESCRIPTION

[0020] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] See also Figures 1 to 7 The present invention provides an external vacuum packaging device for evacuating, shaping and sealing a packaging bag 100 containing granular food. When the external vacuum packaging device evacuates, shapes and seals the packaging bag 100, the packaging bag 100 is placed on a lower mold 200. The lower mold 200 is provided with an inner space 201 with an opening. The inner space 201 of the lower mold 200 extends downward from the upper end surface of the lower mold 200. When the packaging bag 100 is placed on the lower mold 200, the bag opening of the packaging bag 100 extends out from the lower mold 200. In this embodiment, the granular food is rice.

[0027] The external vacuum packaging equipment includes an upper template 10, a first positioning device 20 and a shaping device 50 installed on the upper template 10, a sealing device 30 installed on the first positioning device 20, a heat sealing device 40 installed on the first positioning device 20 and above the sealing device 30, a second positioning device 60 installed on the upper template 10, a suction nozzle 70 installed on the second positioning device 60, and a third positioning device 80 connected to the upper template 10, and the suction nozzle 70 is connected to an external vacuum equipment.

[0028] The first positioning device 20 includes a plurality of guide rails 21, two groups of sliders 22 sliding on the guide rails 21, two first positioning frames 23 respectively mounted on the two groups of sliders 22, and two first driving cylinders 24 mounted on the upper template 10 and respectively connected to the two first positioning frames 23. The guide rails 21 are installed along the X-axis direction, the two first positioning frames 23 are arranged opposite to each other in the X-axis direction, and the two first driving cylinders 24 drive the two first positioning frames 23 to move closer to or away from each other in the X-axis direction.

[0029] The shaping device 50 also comprises two groups, which are mounted on the upper template 10 and are arranged opposite to each other in the Y-axis direction. The shaping device 50 is provided with an air nozzle 51 which is connected to an external air pump.

[0030] The sealing devices 30 are provided in two groups, mounted on the two first positioning frames 23 of the two first positioning devices 20. The two groups of sealing devices 30 are arranged opposite each other in the X-axis direction. Each sealing device 30 includes a functional plate 31 mounted on the first positioning frame 23, a plurality of sealing positioning cylinders 32 mounted on the functional plate 31, a sealing connection block 33 connected to the sealing positioning cylinders 32, a fixing seat 34 mounted on the sealing connection block 33, and a sealing strip 35 mounted on the fixing seat 34. The fixing seat 34 is provided with a T-shaped slot that is wide inside and narrow outside on the side away from the connecting block. The sealing strip 35 is mounted on the T-shaped slot and extends from the T-shaped slot. In this embodiment, the sealing strip 35 is made of elastically deformable silicone. A clearance opening 311 is provided on the inner side of the functional plate 31.

[0031] The heat sealing device 40 includes a first heat pressing module 41 and a second heat pressing module 42, which are respectively mounted on the two first positioning frames 23 of the first positioning device 20. The first heat pressing module 41 and the second heat pressing module 42 are arranged opposite to each other in the X-axis direction. The first heat pressing module 41 includes a first mounting plate 411 mounted on the first positioning frame 23, a first heat pressing cylinder 412 mounted on the first mounting plate 411, a rubber strip holder 413 connected to the first heat pressing cylinder 412, and a rubber strip 414 mounted on the rubber strip holder 413. The second heat pressing module 42 includes a second mounting plate 421 mounted on the first positioning frame 23, a second heat pressing cylinder 422 mounted on the second mounting plate 421, and a heat sealing knife 423 connected to the second hot pressing cylinder 422.

[0032] The second positioning device 60 includes a second positioning frame 61, a nozzle positioning cylinder 62 and a guide sleeve 64 installed on the second positioning frame 61, an adjusting plate 63 connected to the nozzle positioning cylinder 62, and a guide rod 65 connected to the adjusting plate 63 and passing through the guide sleeve 64. The nozzle 70 is installed on the adjusting plate 63, and the guide rod 65 guides the adjusting plate 63 in the Z-axis direction. The nozzle positioning cylinder 62 drives the adjusting plate 63 and the nozzle 70 installed on the adjusting plate 63 to adjust in the Z-axis direction. The nozzle 70 is arranged in sections, including a fixed section 61 and a mating section 62, wherein the mating section 62 is located at the bottom of the nozzle 70, and the mating section 62 is flat.

[0033] The third positioning device 80 is connected to the upper template 10, and the third positioning device 80 drives the upper template 10 to adjust in the Z-axis direction. During the adjustment process, the upper template 10 drives the first positioning device 20, the shaping device 50, the sealing device 30, the heat sealing device 40, and the second positioning device 60 to adjust synchronously.

[0034] During operation, a rice bag 100 is placed on the lower mold 200, with the opening of the bag 100 extending from the lower mold 200. The interior space of the lower mold 200 allows the bag 100 to be shaped. The third positioning device 80 drives the first positioning device 20, the shaping device 50, the sealing device 30, the heat-sealing device 40, and the second positioning device 60 to move downward synchronously, allowing the opening of the bag 100 to extend into the space enclosed by the shaping device 50, the sealing device 30, and the heat-sealing device 40. The nozzle positioning cylinder 62 of the second positioning device 60 drives the nozzle 70 to further adjust downward, so that the nozzle 70 extends into the packaging bag 100. The air nozzles 51 of the two shaping devices 50 are respectively arranged opposite to the two folds 101 of the packaging bag 100. The external air pump is started, and the air pump blows air toward the folds 101 of the packaging bag 100 through the air nozzles 51, causing the two sides of the bag opening of the packaging bag 100 to bend inward along the folds 101 to perform preliminary shaping. The two first driving cylinders 24 of the first positioning device 20 drive the two first positioning frames 23 to move closer to each other in the X-axis direction. The two functional plates 31 further shape the bag opening of the packaging bag 100, so that the bag opening is in a nearly compressed state. The avoidance opening 311 of the functional plate 31 prevents the functional plate 31 from crushing the nozzle 70.

[0035] The sealing adjustment cylinders 32 of the two sets of sealing devices 30 simultaneously drive the two sealing connection blocks 33 to move closer together and press the bag opening, so that the bag opening portion of the packaging bag 100 is in a compressed state. The silicone sealing strip 35 can ensure that the bag opening portion and the space between the bag opening and the suction nozzle 70 are in a compressed state while avoiding damage to the suction nozzle 70. The external vacuuming device is started, and the external vacuuming device vacuums the interior of the packaging bag 100 through the suction nozzle 70. After the vacuuming is completed, the suction nozzle adjustment cylinder 62 of the second adjustment device 60 drives the suction nozzle 70 to adjust upward, so that the suction nozzle 70 is withdrawn from the packaging bag 100. After withdrawal, the two sets of sealing devices 30 continue to compress the bag opening. The first heat pressing module 41 and the second heat pressing module 42 of the heat sealing device 40 drive the rubber strip 414 and the heat sealing knife 423 to move closer to each other through the first heat pressing cylinder 412 and the second heat pressing cylinder 422, so that the rubber strip 414 cooperates with the heat sealing knife 423 to heat seal the bag opening part of the packaging bag 100. After the heat sealing is completed, the sealing device 30 and the heat sealing device 40 release the packaging bag 100, and the third positioning device 80 drives the first positioning device 20, the shaping device 50, the sealing device 30, the heat sealing device 40, and the second positioning device 60 to lift up and return to their original positions.

[0036] The beneficial effects of the external vacuum packaging equipment of the present invention are as follows: by providing a shaping device 50, a heat sealing device 40 mounted on the sealing device 30 of the first positioning device 20, a second positioning device 60, and a suction nozzle 70 mounted on the second positioning device 60, during vacuuming, the second positioning device 60 drives the suction nozzle 70 to directly extend into the packaging bag 100, the shaping device 50 performs preliminary shaping on the packaging bag 100, the sealing device 30 presses the bag opening, and after vacuuming is completed, the suction nozzle 70 is withdrawn from the packaging bag 100, and the heat sealing device 40 heat-seals the bag opening of the packaging bag 100. The utility model has a good vacuuming effect, effectively simplifies the structure of the equipment, reduces the production and maintenance costs of the equipment, improves economic benefits, and is highly practical.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An external vacuum packaging device, characterized in that: It includes an upper template, a first positioning device and a shaping device installed on the upper template, a sealing device and a heat-sealing device installed on the first positioning device, a second positioning device installed on the upper template, a suction nozzle installed on the second positioning device, and a third positioning device connected to the upper template, and the suction nozzle is connected to an external vacuum device; the sealing device is divided into two groups, and the two groups of sealing devices are arranged oppositely in the X-axis direction; each of the sealing devices includes a functional board installed on the first positioning device, a plurality of sealing positioning cylinders installed on the functional board, a sealing connecting block connected to the sealing positioning cylinders at the same time, a fixing seat installed on the sealing connecting block, and a sealing strip installed on the fixing seat; the heat-sealing device includes a first hot pressing module and a second hot pressing module, and the first hot pressing module and the second hot pressing module are arranged oppositely in the X-axis direction; the shaping device is also divided into two groups, and the two groups of shaping devices are arranged oppositely in the Y-axis direction. An air nozzle is provided on the shaping device, and the air nozzle is connected to an external air pump.

2. The external vacuum packaging equipment according to claim 1, characterized in that: The first positioning device includes a plurality of guide rails, two groups of sliders sliding on the guide rails, two first positioning frames respectively mounted on the two groups of sliders, and two first driving cylinders mounted on the upper template and connected to the two first positioning frames respectively. The guide rails are installed along the X-axis direction, the two first positioning frames are arranged opposite to each other in the X-axis direction, the two first driving cylinders drive the two first positioning frames to move closer to or away from each other in the X-axis direction, and two groups of sealing devices are installed on the two first positioning frames of the two groups of first positioning devices.

3. The external vacuum packaging equipment according to claim 2, characterized in that: A T-shaped groove with a wide inside and a narrow outside is provided on the fixing seat at one side away from the connecting block. The sealing strip is installed on the T-shaped groove and extends out from the T-shaped groove.

4. The external vacuum packaging equipment according to claim 2, characterized in that: The sealing strip is made of silicone and a relief opening is provided on the inner side of the functional panel.

5. The external vacuum packaging equipment according to claim 2, characterized in that: The first hot pressing module includes a first mounting plate installed on a first positioning frame, a first hot pressing cylinder installed on the first mounting plate, a rubber strip seat connected to the first hot pressing cylinder, and a rubber strip installed on the rubber strip seat; the second hot pressing module includes a second mounting plate installed on another first positioning frame, a second hot pressing cylinder installed on the second mounting plate, and a heat sealing knife connected to the second hot pressing cylinder.

6. The external vacuum packaging equipment according to claim 2, characterized in that: The second positioning device includes a second positioning frame, a nozzle positioning cylinder and a guide sleeve installed on the second positioning frame, an adjusting plate connected to the nozzle positioning cylinder, and a guide rod connected to the adjusting plate and passing through the guide sleeve. The nozzle is installed on the positioning plate, and the guide rod guides the positioning plate in the Z-axis direction. The nozzle positioning cylinder drives the adjusting plate and the nozzle installed on the adjusting plate to adjust in the Z-axis direction.

7. The external vacuum packaging equipment according to claim 2, characterized in that: The suction nozzle is arranged in sections, including a fixed section and a matching section, wherein the matching section is located at the bottom of the suction nozzle and is flat.

8. The external vacuum packaging equipment according to claim 2, characterized in that: It also includes a third positioning device, which is connected to the upper template and drives the upper template to adjust its position in the Z-axis direction.

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